{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machanical property", "concept or principle", "manufacturing standard", "material", "biomedical", "process characterization"], "input": "Powder-based sintering processes are now able to produce metal moulds that can withstand a few thousand cycles of injection moulding ."}
{"machanical property": [], "concept or principle": [], "manufacturing standard": [], "material": ["metal"], "biomedical": [], "process characterization": []}